The player with the ball throws the ball up towards the net, setting themsleves up to then try and smash the ball onto the target mat.
The player on the other side of the net has to try and block the smash and stop it hitting the target.
The blocker should try to not only prevent the ball hitting the mat, but also ensure that the ball ends up the other side of the net.
"It is not only useful for staff who are experienced but a valuable tool for those subject staff who have to take teams."
The variety of sessions across sports - sometimes we steal session ideas from one sport and use them with another.
As we enter the business end of the competition, we take a look at the remaining eight teams and the key talking points surrounding each side.